07230 - Top Huge 4.20 Inch Clypeaster subdepressus (Sea Urchin) Upper Pliocene Ceratodus humei Only has small glued and

Only has small glued and filled fracture

It comes from The Konservat-Lagerstätten of Lower Fezouata Fm that spans the entire Tremadoc stage of the Ordovician system and is only present in the Moroccan Anti-Atlas

Protoginglymostoma

Donald (1986): Halisaurus and Prognathodon

United States

07230 - Top Huge 4.20 Inch Clypeaster subdepressus (Sea Urchin) Upper Pliocene Ceratodus humei Only has small glued andNice specimen. It only has some glued fractures. Clypeaster sp, Lamarck 1801 (sand dollar) Echinoidea Clypeasteroida Clypeasteridae Parent taxon: Clypeasteridae according to S. K. Donovan et al. 2005 See also Durham 1961, Durham 1966, Ragaini 1994 and Sepkoski 2002 Sister taxa: Ammotrophinae, Arachnoidinae, Clypeasterinae Ecology: slow moving semi infaunal detritivore Age range: 37. 2 to 0. 012 Ma